/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.hadoop.ozone.client.io;

import javax.crypto.Cipher;
import javax.crypto.CipherOutputStream;

import java.io.OutputStream;
import java.util.Map;

/**
 * Wrap javax.crypto.CipherOutputStream with the method to return wrapped
 * output stream.
 */
public class CipherOutputStreamOzone extends CipherOutputStream
    implements KeyMetadataAware {

  private OutputStream output;

  public CipherOutputStreamOzone(OutputStream output, Cipher cipher) {
    super(output, cipher);
    this.output = output;
  }

  protected CipherOutputStreamOzone(OutputStream output) {
    super(output);
    this.output = output;
  }

  public OutputStream getWrappedStream() {
    return output;
  }

  @Override
  public Map<String, String> getMetadata() {
    return ((KeyMetadataAware)getWrappedStream()).getMetadata();
  }
}
